3A90

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3A90
Federal Supply Group
Refrigeration, Air Conditioning, and Air Circulating Equipment
National Stock Number
4140-00-084-2794
Item Name Code
04254
Assigment Date
01/01/1963 (63 years ago)

A nonpositive displacement mechanical device having a centrifugal fan impeller inclosed within a housing. It is designed to move air or gas over a wide range of volumes and pressures. The air or gas is drawn in axially and discharged radially or drawn in radially and discharged axially by centrifugal force through an outlet in the housing.

wire lead electrical connection type, 3020.0 operating speed at rated capacity in rpm, 6.300 inches nominal length, 5.150 inches nominal width, single speed speed adjustments

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Speed Adjustments
single speed
Width
5.150 inches nominal
Length
6.300 inches nominal
Operating Speed At Rated Capacity In Rpm
3020.0
Electrical Connection Type
wire lead
Outlet Inside Diameter
2.125 inches nominal
Static Pressure At Specified Air Flow Rate
0.0 inches of water
Drive Type
direct
Prime Mover Type
electric motor
Inclosure Type
fully inclosed
Mounting Facility Type And Quantity
4 unthreaded hole
Rotation Direction For Which Designed
counterclockwise
Air Flow Rate
60.0 cubic feet per minute nominal
Outlet Location
bottom and top
Voltage In Volts And Current Type
115.0 ac
Prime Mover Power Rating
0.008 horsepower
Prime Mover Drive Shaft Bearing Type
sleeve
Discharge Direction
angular down and angular up and horizontal and vertical down and vertical up
Phase
single
Special Features
positioning when mtg determines direction of @discharge blast
Frequency In Hertz
50.0 and 60.0
Height
5.810 inches nominal
Material
steel overall
Surface Treatment
enamel housing
Surface Treatment
zinc blade
Style Designator
fixed,round outlets

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
4140-00-202-9478 No Name Available 11/01/1979

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
15-49703A10 Centrifugal Fan
1C939 Centrifugal Fan
2A90 Centrifugal Fan
3160-0005 Centrifugal Fan
3A90 Centrifugal Fan
D53073 Centrifugal Fan
D53073B58 Centrifugal Fan
FL8515 Centrifugal Fan
IC939 Centrifugal Fan
U22 Centrifugal Fan

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 4140-00-084-2794?
The FSCG of the NSN 4140-00-084-2794 is 4140
Does the NSN 4140-00-084-2794 have a Schedule B code assigned?
Yes, the Schedule B code is 8414599080
Does NSN 4140-00-084-2794 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 4140-00-084-2794 contain precious materials?
Precious metal content is unknown
Does NSN 4140-00-084-2794 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 4140-00-084-2794 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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